3 ms·
Wut? From the data sheet: "ON CHARACTERISTICS (Note 1) Gate Threshold Voltage (VDS = VGS, ID = 1.0 mAdc) VGS(th) 0.8 3.0 Vdc"
by guenthert 4y ago
Wut? From the data sheet:
"ON CHARACTERISTICS (Note 1)
Gate Threshold Voltage (VDS = VGS, ID = 1.0 mAdc) VGS(th) 0.8 3.0 Vdc"
- dragontamer 4y agoYeah, Vgs(th) is 3V worst-case. That's the specification for 1mA of current flow Ids, which is near useless (note: the Arduino has traditionally been able to supply 20mA+, so a 1mA Ids current at 3V is completely pointless). "th" is Threshold after all, its not when the MOSFET is usable, its when it "starts to turn on". https://rocelec.widen.net/view/pdf/orqxwkxkq1/ONSM-S-A0003544006-1.pdf?t.download=true&u=5oefqw https://rocelec.widen.net/view/pdf/orqxwkxkq1/ONSM-S-A000354... Figure 2 on page 5 gives you an idea of the voltages you're supposed to use. Optimal usage of the 2N7000 requires 10V Vgs (for 1.5A or more), but 5V is sufficient for ~800mA bursts. And I expect 800mA to be enough for most beginner uses. 4V might be usable, but that's well beyond the capabilities of ESP32.